ok its easy to do !
frist go to c:/ or ur windows partition
then u will find a folder names remix os
delete it
then download EasyBCD
http://neosmart.net/EasyBCD/then go to edit boot menu
select remix os
and delete it
that all easy right
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p.s. that for people who wants to try the operating system and cant delete it
i fully support the remix os and jide co.